/* 主体布局与基础样式 */
body {
    font-family: 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', Arial, sans-serif;
    margin: 0;
    padding: 0;
    background: #f7f9fb;
    color: #222;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.section-title {
    text-align: center;
    font-size: 2.2rem;
    margin: 40px 0 20px 0;
    color: #1a73e8;
}

/* 导航栏样式 */
.navbar {
    background: #fff;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
    position: sticky;
    top: 0;
    z-index: 100;
}
.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    height: 64px;
}
.nav-logo h2 {
    margin: 0;
    color: #1a73e8;
    font-weight: 700;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    gap: 8px;
}
.nav-menu {
    list-style: none;
    display: flex;
    gap: 32px;
    margin: 0;
    padding: 0;
}
.nav-link {
    text-decoration: none;
    color: #222;
    font-size: 1.1rem;
    padding: 8px 12px;
    border-radius: 4px;
    transition: background 0.2s, color 0.2s;
}
.nav-link.active, .nav-link:hover {
    background: #e3f0fd;
    color: #1a73e8;
}
.hamburger {
    display: none;
}

/* 主横幅 */
.hero {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: linear-gradient(90deg, #e3f0fd 0%, #f7f9fb 100%);
    padding: 60px 0 40px 0;
    min-height: 340px;
}
.hero-content {
    max-width: 600px;
}
.hero-content h1 {
    font-size: 2.8rem;
    color: #1a73e8;
    margin-bottom: 16px;
}
.hero-content p {
    font-size: 1.2rem;
    color: #444;
    margin-bottom: 32px;
}
.hero-buttons {
    display: flex;
    gap: 16px;
}
.btn {
    display: inline-block;
    padding: 10px 28px;
    border-radius: 24px;
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    transition: background 0.2s, color 0.2s;
    cursor: pointer;
    border: none;
}
.btn-primary {
    background: #1a73e8;
    color: #fff;
}
.btn-primary:hover {
    background: #1761c6;
}
.btn-secondary {
    background: #fff;
    color: #1a73e8;
    border: 1.5px solid #1a73e8;
}
.btn-secondary:hover {
    background: #e3f0fd;
}
.hero-image {
    font-size: 6rem;
    color: #1a73e8;
    margin-right: 40px;
}

/* 核心优势 */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 32px;
    margin: 40px 0;
}
.feature-card {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
    padding: 32px 20px;
    text-align: center;
    transition: transform 0.2s, box-shadow 0.2s;
}
.feature-card:hover {
    transform: translateY(-6px) scale(1.03);
    box-shadow: 0 8px 24px rgba(26,115,232,0.08);
}
.feature-icon {
    font-size: 2.5rem;
    color: #1a73e8;
    margin-bottom: 12px;
}

/* 数据统计 */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 24px;
    margin: 40px 0;
}
.stat-item {
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
    text-align: center;
    padding: 28px 0;
}
.stat-item h3 {
    color: #1a73e8;
    font-size: 2.2rem;
    margin: 0 0 8px 0;
}
.stat-item p {
    color: #444;
    margin: 0;
}

/* 页脚 */
.footer {
    background: #1a73e8;
    color: #fff;
    padding: 40px 0 0 0;
    margin-top: 60px;
}
.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 32px;
    padding-bottom: 24px;
}
.footer-section h3, .footer-section h4 {
    margin-top: 0;
    color: #fff;
}
.footer-section ul {
    list-style: none;
    padding: 0;
    margin: 0;
}
.footer-section ul li {
    margin-bottom: 8px;
}
.footer-section ul li a {
    color: #fff;
    text-decoration: none;
    transition: color 0.2s;
}
.footer-section ul li a:hover {
    color: #e3f0fd;
}
.social-links a {
    color: #fff;
    font-size: 1.3rem;
    margin-right: 12px;
    transition: color 0.2s;
}
.social-links a:hover {
    color: #e3f0fd;
}
.footer-bottom {
    text-align: center;
    padding: 16px 0;
    background: #1761c6;
    font-size: 0.95rem;
    color: #e3f0fd;
}

/* 页面标题 */
.page-header {
    background: linear-gradient(135deg, #1a73e8 0%, #1761c6 100%);
    color: #fff;
    padding: 60px 0;
    text-align: center;
}
.page-header h1 {
    font-size: 2.8rem;
    margin: 0 0 16px 0;
}
.page-header p {
    font-size: 1.2rem;
    margin: 0;
    opacity: 0.9;
}

/* 关于我们页面 */
.about-section {
    padding: 60px 0;
}
.about-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}
.about-text h2 {
    color: #1a73e8;
    font-size: 2.2rem;
    margin-bottom: 24px;
}
.about-text p {
    font-size: 1.1rem;
    line-height: 1.6;
    color: #444;
    margin-bottom: 16px;
}
.about-image {
    text-align: center;
    font-size: 8rem;
    color: #1a73e8;
}

/* 使命愿景 */
.mission-vision {
    background: #fff;
    padding: 60px 0;
}
.mission-vision-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 40px;
}
.mission-card, .vision-card {
    background: #f7f9fb;
    border-radius: 16px;
    padding: 40px;
    text-align: center;
    transition: transform 0.2s, box-shadow 0.2s;
}
.mission-card:hover, .vision-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(26,115,232,0.08);
}
.card-icon {
    font-size: 3rem;
    color: #1a73e8;
    margin-bottom: 20px;
}
.mission-card h3, .vision-card h3 {
    color: #1a73e8;
    font-size: 1.8rem;
    margin-bottom: 16px;
}
.mission-card p, .vision-card p {
    font-size: 1.1rem;
    line-height: 1.6;
    color: #444;
}

/* 核心价值观 */
.values {
    padding: 60px 0;
}
.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 32px;
    margin-top: 40px;
}
.value-item {
    background: #fff;
    border-radius: 12px;
    padding: 32px 24px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
    transition: transform 0.2s, box-shadow 0.2s;
}
.value-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(26,115,232,0.08);
}
.value-item h4 {
    color: #1a73e8;
    font-size: 1.3rem;
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}
.value-item p {
    color: #444;
    line-height: 1.6;
}

/* 发展历程 */
.timeline {
    background: #fff;
    padding: 60px 0;
}
.timeline-container {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}
.timeline-container::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: #1a73e8;
    transform: translateX(-50%);
}
.timeline-item {
    position: relative;
    margin-bottom: 40px;
    display: flex;
    align-items: center;
}
.timeline-item:nth-child(odd) {
    flex-direction: row;
}
.timeline-item:nth-child(even) {
    flex-direction: row-reverse;
}
.timeline-date {
    background: #1a73e8;
    color: #fff;
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: 600;
    min-width: 80px;
    text-align: center;
}
.timeline-content {
    background: #f7f9fb;
    border-radius: 12px;
    padding: 24px;
    margin: 0 20px;
    flex: 1;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.timeline-content h3 {
    color: #1a73e8;
    margin-bottom: 8px;
}
.timeline-content p {
    color: #444;
    margin: 0;
}

/* 产品页面 */
.product-categories {
    background: #fff;
    padding: 40px 0;
}
.category-tabs {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}
.tab-btn {
    background: #f7f9fb;
    border: none;
    padding: 12px 24px;
    border-radius: 24px;
    font-size: 1rem;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
}
.tab-btn.active, .tab-btn:hover {
    background: #1a73e8;
    color: #fff;
}
.product-section {
    display: none;
    padding: 60px 0;
}
.product-section.active {
    display: block;
}
.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 32px;
    margin-top: 40px;
}
.product-card {
    background: #fff;
    border-radius: 16px;
    padding: 32px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
    transition: transform 0.2s, box-shadow 0.2s;
}
.product-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 32px rgba(26,115,232,0.08);
}
.product-icon {
    font-size: 3rem;
    color: #1a73e8;
    margin-bottom: 20px;
    text-align: center;
}
.product-card h3 {
    color: #1a73e8;
    font-size: 1.5rem;
    margin-bottom: 16px;
    text-align: center;
}
.product-card p {
    color: #444;
    line-height: 1.6;
    margin-bottom: 20px;
}
.product-features {
    list-style: none;
    padding: 0;
    margin-bottom: 24px;
}
.product-features li {
    padding: 8px 0;
    color: #444;
    position: relative;
    padding-left: 20px;
}
.product-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: #1a73e8;
    font-weight: bold;
}

/* 招聘页面 */
.culture {
    padding: 60px 0;
}
.culture-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 32px;
    margin-top: 40px;
}
.culture-item {
    background: #fff;
    border-radius: 12px;
    padding: 32px 24px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
    transition: transform 0.2s, box-shadow 0.2s;
}
.culture-item:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(26,115,232,0.08);
}
.culture-icon {
    font-size: 2.5rem;
    color: #1a73e8;
    margin-bottom: 16px;
}
.culture-item h3 {
    color: #1a73e8;
    margin-bottom: 12px;
}
.culture-item p {
    color: #444;
    line-height: 1.6;
}

.benefits {
    background: #fff;
    padding: 60px 0;
}
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    margin-top: 40px;
}
.benefit-item {
    background: #f7f9fb;
    border-radius: 12px;
    padding: 24px;
    transition: transform 0.2s, box-shadow 0.2s;
}
.benefit-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(26,115,232,0.08);
}
.benefit-item h4 {
    color: #1a73e8;
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.benefit-item p {
    color: #444;
    margin: 0;
}

.job-listings {
    padding: 60px 0;
}
.job-filters {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}
.filter-btn {
    background: #f7f9fb;
    border: none;
    padding: 10px 20px;
    border-radius: 20px;
    font-size: 0.95rem;
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
}
.filter-btn.active, .filter-btn:hover {
    background: #1a73e8;
    color: #fff;
}
.jobs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
}
.job-card {
    background: #fff;
    border-radius: 16px;
    padding: 32px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
    transition: transform 0.2s, box-shadow 0.2s;
}
.job-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(26,115,232,0.08);
}
.job-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}
.job-header h3 {
    color: #1a73e8;
    margin: 0;
}
.job-type {
    background: #e3f0fd;
    color: #1a73e8;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 500;
}
.job-info {
    margin-bottom: 16px;
}
.job-info p {
    color: #666;
    margin: 4px 0;
    display: flex;
    align-items: center;
    gap: 8px;
}
.job-description {
    margin-bottom: 20px;
}
.job-description p {
    color: #444;
    line-height: 1.6;
}
.job-requirements h4 {
    color: #1a73e8;
    margin-bottom: 8px;
}
.job-requirements ul {
    list-style: none;
    padding: 0;
}
.job-requirements li {
    padding: 4px 0;
    color: #444;
    position: relative;
    padding-left: 16px;
}
.job-requirements li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: #1a73e8;
}

/* 联系我们页面 */
.contact-info {
    padding: 60px 0;
}
.info-item {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
    background: #fff;
    padding: 24px;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}
.info-item i {
    font-size: 1.5rem;
    color: #1a73e8;
    min-width: 24px;
}
.info-item p {
    margin: 0;
    font-size: 1.1rem;
    color: #444;
}

.contact-form {
    background: #fff;
    padding: 60px 0;
}
.form-group {
    margin-bottom: 24px;
}
.form-group label {
    display: block;
    margin-bottom: 8px;
    color: #1a73e8;
    font-weight: 500;
}
.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.2s;
    box-sizing: border-box;
}
.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #1a73e8;
}
.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.map {
    padding: 60px 0;
}
.map iframe {
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(0,0,0,0.1);
}

/* 响应式设计 */
@media (max-width: 900px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding: 40px 0 20px 0;
    }
    .hero-image {
        margin: 0 0 24px 0;
    }
    .nav-menu {
        gap: 18px;
    }
    .about-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .timeline-container::before {
        left: 20px;
    }
    .timeline-item {
        flex-direction: row !important;
    }
    .timeline-date {
        margin-right: 20px;
    }
    .timeline-content {
        margin-left: 40px;
    }
}
@media (max-width: 600px) {
    .container {
        padding: 0 8px;
    }
    .features-grid, .stats-grid, .footer-content,
    .values-grid, .products-grid, .jobs-grid,
    .culture-grid, .benefits-grid {
        grid-template-columns: 1fr;
    }
    .nav-container {
        flex-direction: column;
        height: auto;
        padding: 8px 0;
    }
    .nav-menu {
        flex-direction: column;
        gap: 8px;
        margin-top: 8px;
    }
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    .category-tabs, .job-filters {
        flex-direction: column;
        align-items: center;
    }
    .mission-vision-grid {
        grid-template-columns: 1fr;
    }
} 